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on the research above, the regularity of the phase transformation and the oxidizing kinetic equations of iron in the oxidizing process were studied in this work. Enrichment and crystal growth mechanism of magnetite...Oxidization mechanism in CaO-FeOx-SiO2 slag with high iron content ZHANG Lin-nan(张林楠), ZHANG Li(张 力), WANG Ming-yu(王明玉), SUI Zhi-tong(隋智通) (School of Materials and Metallurgy, Northeastern......
as the kinetics proceeds parabolically. The change of the oxidation kinetics law is caused by tiny zinc particles formed in zinc vapor. The relative kinetic model functions and kinetics parameters of the title reaction were deduced from kinetic theories and the experimental data. The oxidation mechanism of the tiny zinc particles were investigated and the diffusion coefficient of Zn atoms through......
曲线1在随后超过曲线2,如图5(d)所示.由以上分析可知,在高温段(450 ℃,500 ℃)等温退火时,大的冷轧变形量导致位错等缺陷密度增高,析出形核位置增加,孕育期缩短,从而促进析出过程的进行;但同样会促进再结晶的快速完成,基体中新的无畸变组织反而对随后的析出过程产生了抑制作用. 图5 JMAK方程拟合的等温析出动力学曲线 Fig. 5 Fitting kinetic...贵清. 3003铝合金热变形机制及其加工图[J]. 材料热处理学报, 2013, 34(2): 114-119. FU Gao-sheng, CHEN Gui-qing. Hot deformation mechanism and processing maps of 3003 aluminum alloy[J]. Transactions of Materials and Heat......
kinetic 碳/碳(C/C)复合材料具有密度小,热膨胀系数低,模量高,耐腐蚀,耐磨损和吸震性能好等优异性能,因此,C/C复合材料是最有发展前景的高技术新材料之一,已在航空和航天等高温领域得到广泛应用[1].但是,C/C复合材料在温度超过500 ℃的氧化气氛下迅速氧化使得其力学性能明显降低,从而限制其在很多领域的应用[2],因此,近年来C/C复合材料的氧化防护问题成为研究热点之一.涂层技术是解决C.../Carbon composites and resultant oxidation kinetics and mechanism[J]. Journal of Materials Science & Technology, 2010, 26(11): 1021-1026. [5] FU Qiangang, LI Hejun, LI Kezhi, et a1. SiC whisker......
. 含砷钴镍渣中砷碱介质氧化浸出机理[J]. 过程工程学报, 2013, 10(6): 939-945. YU Guo-lin, ZHANG Ying, ZHENG Shi-li. Oxidation leaching mechanism of arsenic-alkali in residue containing arsenic, cobalt and nickel[J]. Chinese.... The technology avoids the generation of highly toxic AsH3 and has practical significance for the comprehensive utilization of arsenic resources. Key words: alkaline leaching; arsenic; kinetic study; cobalt......
J. Cent. South Univ. (2021) 28: 1857-1874 DOI: https://doi.org/10.1007/s11771-021-4735-5 Energy evolution mechanism and failure criteria of jointed surrounding rock under uniaxial compression LI... the energy evolution mechanism and failure criteria of cross-jointed samples containing an opening during deformation and failure based on the uniaxial compression test and rock energy principle......
pH variation mechanism of high sulfur-containing bauxiteCHEN Xing-hua(陈兴华)1, 2, HU Yue-hua(胡岳华)1, LI Wang-xing(李旺兴)2, CHEN Xiang-qing(陈湘清)2, CAO Xue-feng(曹学锋)1(1. School of Minerals Processing... of high sulfur-containing bauxite during storage, by simulating the environment of minerals storage in laboratory, the acidification mechanism and influencing factors of high sulfur-containing bauxite were......
and transition states of various reactions was implemented. The standard kinetic parameters in each reaction pathway were calculated and the formation and evolution mechanism of main pyrolysis products...J. Cent. South Univ. (2017) 24: 2565-2571 DOI: https://doi.org/10.1007/s11771-017-3670-y Mechanism studies of 5-HMF pyrolysis by quantum chemistry CHEN Bo(陈波)1, SHI Zhang-ming(时章明)1, JIANG Shao-jian......
of catalysts on dehydrogenation of LiAlH4+MgH2 composite and catalytic mechanism DING Xiang-qian, ZHU Yun-feng, WEI Ling-jun, HUAN Qing-qing, LI Li-quan (College of Materials Science and Engineering... properties. Structural and dehydrogenation properties of the composites were investigated by XRD, SEM, EDS, XPS and Sieverts method. The catalytic mechanism of TiF3 was also discussed. The results show......
; 文章编号:1672-7207(2018)06-1307-08 Simplification and application of particles kinetic equation for liquid-solid fluidized bed separator SUN Mingyang, WEI Lubin, ZHU Xueshuai, LI Dahu, LI Yang... exerted on particles in the liquid-solid fluidized bed separator (LSFBS) was carried out. Particles kinetic equation was simplified according to the comparison results and the characteristics of particles......